There's actually a pretty extensive article in Wikipedia that addresses the origins of the myth.
If it is a myth.
Here are more opinions and answers from other WikiAnswers contributors:
I personally think that most blondes are pretty smart. Not only smart but hot, funny, kind, and trustworthy.
Excuse me, but I am a blonde and I get straight A's. Blondes in general are not stupid even though some get their "dumb blonde" moments.
Being blonde doesn't make you dumb, that is just a untrue stereotype.
this is not true. People with any coloured hair have dumb moments. Saying that blonde people have dumb moments is stereotyping.
No, it is highly impossible for a person to get fired for calling someone a dumb blonde.
none the last guy was a blonde
The cast of Dumb Blonde - 2011 includes: Isaac Cook as Harry
Yes, Bushra Shamim is a blonde because she is dumb like a dumb blonde and has no idea what is going on in her life except for her obsession over Justin Bieber and Music.
A smart blonde, a dumb blonde, and the tooth fairy were walking down the street, when they spot a twenty-dollar note on the ground. Who picked it up? Answer: The dumb blonde... the other two are a figment of your imagination.
Because some people think they are funny. It's your opinion if you find them funny or not.
wave at her
no she is a dumb blonde she is very taps
You know how people call girls with blonde hair 'dumb blondes'? And how there are jokes about people like brunettes and redheads and blondes, and the blondes are always saying something dumb? Usually now, when you act sort of off or dumb, people say you are having a " blonde moment." which means you are having a dumb moment.
The blonde stereotype is found unfair to many people because they are blonde. By telling a blonde joke, you are basically saying that all blonde people are stupid.
it was from you hehehehehehe
Russia - I think.
dumb hot u know
Dumb blonds are just a stereotype.
A great way to get dumb blond jokes is just to google dumb blond jokes
No. It is a stereotype that blondes are "ditzy" or dumb. Hair color has nothing to do with your intelligence. Your intelligence comes from what you learn in life. Like, if I had black hair and I'm smart and I dye it blonde that doesn't mean I've become dumb.
it is not a myth it actually makes you sneeze
If a blonde and a brunette fell out of a plane, which would hit the ground first? The brunette. The blonde would have to stop and ask directions!
Nothing it is a dumb myth
? He's 23,456,789,876,543,212,345,678,909,876,432,123,456,789,876,543. You're welcome, dumb blonde. (: